We ITR owners have to be careful relating our experiences and correlating them with other B18 motors because, although I'm sure Integra owners are tired of hearing about this, our motors are different from regular B18 motors.

Our heads flow differently and our cranks and pistons are different, aren't they?

This is the very first dyno on my ITR motor. A rolling Dynojet that was at VIR. The motor didn't have a lot of miles on it.


Here is a dyno plot that compares two versions of my ITR configuration. The lower numbers are with a Comptech Icebox, SMS header, Carsound cat and SMS 2.5" exhaust all the way back.

The higher numbers add very mild head work and a cheap Hondata tuned for track use.


This is the kind of experience that ITR people have when dealing with our motors, but it doesn't mean that we all necessarily know what we're talking about w/other B18 motors. I have owned a GS-R, but never modified it.

I'm only posting this to show what the ITR owners are talking about, and I have to give way to the knowledge exhibited by people who have modified non-ITR B motors.